1.1 What is a Patch Set?

Patch set is a mechanism for delivering fully tested and integrated product fixes. A patch set includes all files that have been rebuilt to implement the bug fixes. All of the fixes in the patch set have been tested and are certified to work with one another.

Oracle Fusion Middleware 11g Release 1 (11.1.1.2.0) is cumulative and includes all of the fixes from Oracle Fusion Middleware 11g Release 1 (11.1.1.1.0).

Patch sets contain generic fixes that apply to all platforms and may also include platform-specific fixes.

Note:

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Patch Assistant enables you to migrate your existing configuration of Oracle Fusion Middleware 11g Release 1 (11.1.1.1.0) components, used in conjunction with the 11.1.1.1.0 and 11.1.1.2.0 installations. Patch Assistant is not a complete software distribution. You must run this Patch Assistant over an existing Oracle Fusion Middleware 11g Release 1 (11.1.1.1.0) installation. Patch Assistant is designed to work with all Oracle Fusion Middleware 11g Release 1 (11.1.1.1.0) products. You may see messages that an Oracle product is not present in a domain or instance. This message is informational and does not indicate an error.

Patch Assistant is used only for updating Oracle Fusion Middleware 11g Release 1 (11.1.1.1.0) Domains and Oracle Instances. If you are not updating your existing 11.1.1.1.0 domains and instances, you are not required to use Patch Assistant.

When you run Patch Assistant tool, the configuration files contained in the Oracle Fusion Middleware 11g Release 1 (11.1.1.1.0) domain and Instance directories are copied to the new directories in the Oracle Fusion Middleware 11g Release 1 (11.1.1.2.0) installation. The Middleware home is the full path of the Oracle directory that contains the Oracle Fusion Middleware installation, and MW_HOME will be used in this documentation to refer to the directory where the product is installed.

Note:

MW_HOME must be replaced with the full path name of the installed Oracle Fusion Middleware instance.

1.3 Migration Process

Figure 1-1 illustrates the migration process. Review this chart to get familiar with the steps you are required to take, based on your existing Oracle Fusion Middleware environment.